SHAFTLESS SPIRALS
Motridal manufactures continuous flighting, also known as shaftless screws or centerless screw, in a large range of thicknesses and diameters.
Produced from a flat bar, in either Carbon, Stainless or wear resistant Steels, for shaftless augers, augers with a high filling ratio or shaft mounted for a complete auger.
The main applications use a single piece of continuous flighting or two helixes coaxially welded together.
Dimensions
| Diameter (D) | 20 ÷ 660 (mm) |
| Pitch (P) | 10 ÷ 1000 (mm) |
| Thickness (S) | 3 ÷ 30 (mm) |
Materials
| Carbon Steels |
FE430B (S275JR / 1.0044), FE510B (S355JR / 1.0045) |
| Stainless Steels |
AISI304 (1.4301), AISI316L (1.4404) |
PHOTOGALLERY
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For information about Motridal products and services, contact us.